background: breakfast cereal is a nutritious type of food that is widely consumed by various age groups in kuwait. this study investigates the presence of long-lived gamma emitters in breakfast cereal, and estimates annual effective doses to various age groups. materials and methods: breakfast cereal samples were collected from the kuwaiti local market. the samples originated from different cou...

In this   paper,  we   present  some  refinements  of the   famous Young  type  inequality.   As  application  of   our   result, we  obtain  some  matrix inequalities   for   the  Hilbert-Schmidt norm  and   the  trace   norm. The results    obtained   in  this  paper  can  be   viewed   as  refinement  of  the   derived  results   by  H.  Kai  [Young  type  inequalities  for matrices,  J.  Ea...

The paper by R. H. Korogui, A. R. Fioravanti, and J. C. Geromel focuses on the H∞ control design for time-delay linear systems. The results are based on the use of a comparison system obtained via Rekasius’ substitution. As it is known from the delay systems’ literature, this transformation allows to approximate the non-rational transfer functions by rational ones. Moreover the two transfer fun...

We obtain a representation for the norm of the composition operator Cφ on the Hardy space H 2 whenever φ is a linear-fractional mapping of the form φ(z) = b/(cz + d). The representation shows that, for such mappings φ, the norm of Cφ always exceeds the essential norm of Cφ. Moreover, it shows that a formula obtained by Cowen for the norms of composition operators induced by mappings of the form...

Abstract Public policies often involve “norm nudging”, the use of norm information to steer individual behavior in a prosocial direction. Analysis social messaging concentrates on outcome measure: potential change behavior. The cognitive and psychological processes that underlie individuals’ response information, especially inferences they draw, are usually overlooked. This knowledge gap may le...

In this article, we analyze the emergence of a global security norm COVID-19 epidemic as threat to international security. This crisis is one gravest crises that humanity has experienced since end World War II in terms number people infected and died, but also economic consequences. Here, provide framework for understanding securitization an defined promoted by Health Organization entrepreneur,...

We show several examples of n.a. valued fields with involution. Then, by means of a field of this kind, we introduce “n.a. Hilbert spaces” in which the norm comes from a certain hermitian sesquilinear form. We study these spaces and the algebra of bounded operators which are defined on them and have an adjoint. Essential differences with respect to the usual case are observed.